Answer:
The Second Amendment is considered controversial because some people disagree about whether every people should be allowed to bear arms or not.
Step-by-step explanation:
The Second Amendment to the Constitution of the United States of America protects the right of American people to possess and bear arms. Thus, the United States is one of the countries with the least limitations in acquiring and carrying firearms. The Supreme Court of the United States has clarified in numerous occasions the constitutional text: it has affirmed that the right to bear arms is an individual right that all Americans have, but also it has declared that the right is not unlimited and that it does not prohibit the regulation of the production and purchase of firearms or similar devices. The Second Amendment establishes that neither the federal government of the United States nor the state and local governments can infringe the right to bear arms.
Defenders of the right to bear arms say that an armed people carries out a better execution of self-defense and that it prevents government authority from becoming tyrannical. Defenders of gun control claim that American cities would be safer if there were not as many firearms, although proponents of the right to bear arms argue that when law-abiding citizens arm themselves, they act "faster and better" than police and, therefore, weapons reduce crime rates.
In 2016, four out of ten Americans claimed to have at least one firearm in their homes, although this proportion could be much higher since the data only includes those people who want to reveal voluntarily if they own a firearm or not. Since the 1990s, support for the Second Amendment has progressively increased among both liberal and conservative voters. In 2016, 76% of Americans oppose the repeal of the Second Amendment; this figure was only 36% in 1960.